package com.xyc.gulimall.order.web;

import com.xyc.gulimall.order.service.OrderService;
import com.xyc.gulimall.order.vo.OrderConfirmVo;
import com.xyc.gulimall.order.vo.OrderSubmitVo;
import com.xyc.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    private OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo orderConfirmVo = orderService.confirmOrder();

        model.addAttribute("orderConfirmVo", orderConfirmVo);
        return "confirm";
    }

    /**
     * 下单功能 以表单方式提交
     *
     * @param orderSubmitVo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo orderSubmitVo, Model model, RedirectAttributes redirectAttributes) {
        //下单：去创建订单、验令牌、验价格、锁库存...
        try {
            SubmitOrderResponseVo submitOrderResponseVo = orderService.submitOrder(orderSubmitVo);
            if (submitOrderResponseVo.getCode() == 0) {
                //下单成功来到支付选择页
                model.addAttribute("submitOrderResponseVo", submitOrderResponseVo);
                return "pay";
            } else {
                String msg = "下单失败：";
                switch (submitOrderResponseVo.getCode()) {
                    case 1:
                        msg += "订单信息过期，请刷新再次提交";
                        break;
                    case 2:
                        msg += "订单商品价格发生变化，请确认后再次提交";
                        break;
                    case 3:
                        msg += "库存锁定失败，商品库存不足";
                        break;
                }
                redirectAttributes.addFlashAttribute("msg", msg);
                //下单失败回到订单确认页重新确认订单信息
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            redirectAttributes.addFlashAttribute("msg", e.getMessage());
            //下单失败回到订单确认页重新确认订单信息
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
